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Integrate layer info cache with registry and storage

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This changeset integrates the layer info cache with the registry webapp and
storage backend. The main benefit is to cache immutable layer meta data,
reducing backend roundtrips. The cache can be configured to use either redis or
an inmemory cache.

This provides massive performance benefits for HEAD http checks on layer blobs
and manifest verification.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
This commit is contained in:
Stephen J Day
2015-04-01 16:41:33 -07:00
parent b1f616cbff
commit 44b14ceadc
12 changed files with 262 additions and 25 deletions
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3
registry/handlers/app_test.go
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@@ -13,6 +13,7 @@ import (
"github.com/docker/distribution/registry/auth"
_ "github.com/docker/distribution/registry/auth/silly"
"github.com/docker/distribution/registry/storage"
"github.com/docker/distribution/registry/storage/cache"
"github.com/docker/distribution/registry/storage/driver/inmemory"
"golang.org/x/net/context"
)
@@ -28,7 +29,7 @@ func TestAppDispatcher(t *testing.T) {
Context: context.Background(),
router: v2.Router(),
driver: driver,
registry: storage.NewRegistryWithDriver(driver),
registry: storage.NewRegistryWithDriver(driver, cache.NewInMemoryLayerInfoCache()),
}
server := httptest.NewServer(app)
router := v2.Router()